How CRAS works

CRAS is based on "Hydration Chemical Reaction" technology. This technology, which dates from ancient times was used as far back as the construction of the Pyramids in Egypt for extracting and working large granite blocks.

The Egyptians used to insert wooden wedges and wet these with water. Due to the Hydration Chemical Reaction effect, a tremendous expansive force was obtained fracturing the stone as a result.

Demolition or expansion cements: the only difference between demolition cement and expansive cement is that this expands and normal cement contracts.

Demolition Cements, mixed with water, produce Hydration Chemical Reaction in a natural manner, generating an expansive power of 7000 Tm/m2..